Received: 9 March 2020
Accepted: 24 September 2020
First Online: 2 October 2020
Ethics approval and consent to participate
: Written informed consent was provided by all participants prior to answering the questionnaire, including consent for de-identified data to be used in publications arising from the research.This study was approved by the Ethics Commission of Institute of Bioethics of the Portuguese Catholic University of Porto (IB-UCP). The ESR number is 02.2019, and it complies with the applicable data protection, privacy legislation and best practices, namely, the General Data Protection Regulation.
: Not applicable.
: The authors declare that they have no competing interests.